fetodi.sh

#!/bin/sh -e

PROG="${0##*/}"

usage() {
    echo -e "Usage: ${PROG} ACTION FILE\n"
    echo    "       ${PROG} moves or copies FILE to /usr/portage/distfiles and sets proper umask."
    echo    "       ACTION: action {cp, mv}."
    echo -e "       FILE: path to file.\n"
    echo    "       You mustn't run this script with root privileges."
    exit 0
}

[ $# -eq 2 ] || usage
[ ${EUID} -ne 0 ] || usage

action="$1"   && shift
filename="$1" && shift

[ "$action" = "cp" ] || [ "$action" = "mv" ] || usage

destination="/usr/portage/distfiles"
filemask="664"

perform_action() {
    sudo $1 $2 $3
    sudo chmod $4 "$3/$2"
    sudo chown ${USER}:${USER} "$3/$2"
}

echo "action:       ${action}"
echo "destination:  ${destination}/${filename}"
echo "umask:        ${filemask}"
echo "owner:        ${USER}:${USER}"

perform_action ${action} ${filename} ${destination} ${filemask}